My son attended Cornerstone from ages 2-5. This place was a Godsend, honestly. He received wonderful care and attention from all of the staff, the rooms were all kept very clean and had plenty of toys/books/etc., and I really felt like the staff truly cared about my son and myself. They operate on a sliding scale, which really allowed me to be able to work and attend school without spending all my money on childcare.
I strongly recommend Cornerstone to anyone looking to place their kids in a great learning environment, and I hope one day I'll be able to give back to them a fraction of what they gave to me.